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Finding the Fourth Proportional to 50,651.46, 75,980.43 and 19,486.71

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Solution

The fourth proportional to 50,651.46, 75,980.43 and 19,486.71 is: 29,231.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,651.46 : 75,980.43 = 19,486.71 : x
  2. Step 2: Convert to fraction form
    50,651.46/75,980.43 = 19,486.71/x
  3. Step 3: Cross multiply
    50,651.46x = 75,980.43 × 19,486.71
  4. Step 4: Simplify right side
    50,651.46x = 1,480,608,127.75
  5. Step 5: Solve for x
    x = 1,480,608,127.75/50,651.46
  6. Step 6: Final answer
    x = 29,231.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.